Type of robot?

What type of robot do you use? What do you use to lift cubes for tower takeover? Take this poll to tell the community what type of robot is most common.

  • Traybot
  • DR4B
  • Cascade lift
  • Other

0 voters

My team is using a tray-bit on a DR4B. But I personally do not like the 2 motors on the drivetrain and 1 motor strafe wheel, because it allows us to be subjected to some pretty heavy defense.

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@CarCar maybe check out this thread?

3 Likes

Woo, 1/32 #cascadegang
Going strong! :sweat_smile:

4 Likes

How do you even use a cascade lift for picking cubes up? Is it a similar concept to picking cubes up in squared away?

I’m pretty sure it was joke, but if it wasn’t(not trying to diss the idea, I’m kinda curious to see a cascade this year), it would just be a cube tube at the end of a cascade instead of a dr4b.

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No the person also voted for the cascade lift system.

Maybe they would somehow put an entire tray at the end.
Kind tricky though.

To be honest, a cascade lift ideally is the best. Plus it can be super compact (compared to a comparative height DR4B)However, the linear slides or other methods of creating the cascading mechanism cause way too much friction and slip for them to be the best. You can kinda see how they are better in a way by looking at most of the FRC destination deep space bots.

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Yes but that was when the robots had to life some 3 times more than the height of their robot, something that wasn’t very heavy.

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In frc it works well because of how much more functional robots can be. In vex, the cog gets way off with a cascade

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Wait. A tilting cascade lift. It would work just like any other robot. I wonder if anyone is making that.

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Yes, it’s very real :stuck_out_tongue:
No leaks, but we can pick up towers of cubes and internally stacked cubes with the lift.
As for the stigma cascades have for friction and all that, we didn’t really go too far with making it fast yet but we are at 300rpm on a 6t sprocket with no real banding so with proper banding I think we can get it to 600rpm. (This is all with one motor fyi)

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U might want to change the 6T sprockets. Those can break chains incredibly easy

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I think it should also be added that the cascade isn’t going to be lifting many cubes at once, when the lift is collapsed it essentially functions the same as a traybot. This also means that even if the lift breaks we can still be a threat. I’ll have to look into using larger sprockets but I’m not sure it’ll be necessary.

So far the only times it has broken is when we’ve been messing with the pillow bearing screwed into the chain.

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My team has been having a lot of issues with the pillow bearing connection to the chain how did you guys over come this because we were thinking about using high strength chain but we would need to re work our design a fair bit.

I’ve never even seen regular chain used, absolutely use hs chain. I can’t imagine your design will change a lot - just change the sprockets out.

We put screws through the pillow bearings into a 4-chain long segment. 4 links is a bit long so it bends outward a bit but 3 links is too short.

I’ve seen it used before during TP for an intake. Broke. All. The. Time.

However it has been used effectively as I think it was used in 62’s (Cameron’s) Skyrise transmission.

If ya wanna use it, make sure it’s in a protected place where there’s no direct impacts

Wouldn’t the orientation of the perpendicular bearing change which would change how we would mount other stages onto it

I don’t think I understand your question, the perpendicular bearing will always be oriented perpendicular-ly.

I’m just going to say that it’ll depend on your design